STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
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Gene Fusion
Cooccurrence
Coexpression
Experiments
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Textmining
[Homology]
Score
gptXanthine phosphoribosyltransferase; Acts on guanine, xanthine and to a lesser extent hypoxanthine; Belongs to the purine/pyrimidine phosphoribosyltransferase family. XGPT subfamily. (165 aa)    
Predicted Functional Partners:
guaA
GMP synthase; Catalyzes the synthesis of GMP from XMP.
  
 0.989
gmk
Guanylate kinase; Essential for recycling GMP and indirectly, cGMP.
  
 
 0.953
apt
Adenine phosphoribosyltransferase; Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis.
  
 
 0.941
AMS39070.1
Purine nucleoside phosphorylase; The purine nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the beta- (deoxy)ribonucleoside molecules, with the formation of the corresponding free purine bases and pentose-1-phosphate.
  
 
 0.938
AMS39038.1
NTP phosphatase; Pyrophosphatase that catalyzes the hydrolysis of nucleoside triphosphates to their monophosphate derivatives, with a high preference for the non-canonical purine nucleotides XTP (xanthosine triphosphate), dITP (deoxyinosine triphosphate) and ITP. Seems to function as a house-cleaning enzyme that removes non-canonical purine nucleotides from the nucleotide pool, thus preventing their incorporation into DNA/RNA and avoiding chromosomal lesions. Belongs to the HAM1 NTPase family.
 
 0.932
guaB
Inosine-5`-monophosphate dehydrogenase; Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth. Belongs to the IMPDH/GMPR family.
  
 
 0.931
AMS40676.1
Hypoxanthine phosphoribosyltransferase; Pfam:pfam00156 Phosphoribosyl transferase domain; Belongs to the purine/pyrimidine phosphoribosyltransferase family.
   
 0.928
AMS39977.1
Pfam:pfam00117 Glutamine amidotransferase class-I.
  
 
 0.924
deoD
Hypothetical protein; Pfam:pfam01048 Phosphorylase superfamily.
    
 0.915
surE
Stationary phase survival protein SurE; Nucleotidase that shows phosphatase activity on nucleoside 5'-monophosphates; Belongs to the SurE nucleotidase family.
    
 0.911
Your Current Organism:
Aminobacter aminovorans
NCBI taxonomy Id: 83263
Other names: A. aminovorans, ATCC 23314, ATCC 29600, Aminobacter heintzii, CCUG 2081, CIP 106737, Chelatobacter heintzii, DSM 10368, DSM 7048, JCM 7852, KCTC 2477, LMG 2122, LMG:2122, NCCB 26039, NCIB 9039, NCIB:9039, NCIMB 9039, NCTC 10684, Pseudomonas aminovorans, VKM B-2058
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